Construction of burning-fluid lamps



D. F. RANDALL. Lamp Burner.

Patented Jan: 13, 1857.

burner cap and the wick tube.

UNITED STATES PATENT OFFICE.

DAVID F. RANDALL, OF OHICOPEE, MASSACHUSETTS.

CONSTRUCTION OF BURNING-FLUID LAMPS.

Specification of Letters Patent No.

To all whom 'it may concern:

Be it known that I, DAVID F. RANDALL, of Chicopee, in the county of Hampden and State of Massachusetts, have invented an Improvementin Lamps for Burning Volatile Hydrocarbons; and I do hereby declare that the same is fully described and represented in the following specification and the accompanying drawings, of which Figure 1, denotes a view of one of my improved lamps. Fig. 2, is a longitudinal section of its wick tube gas burner, and spur to be hereinafter described. Fig. 3, is a top view of the gas burner tube. Fig. 4, a side view of the spur.

In said drawings, A, denotes a common lamp, such as is used for burning camphene or highly volatile burning fluid composition, a, being its wick tube, and hits wick.

On the wick tube is slipped a cap or gas burner, 0, provided with a slit, (Z, on its top for emission of vapor, and also with a small hole down through the central port of the slip or tip through which and down into the wick, I insert a tapering spur, f, provided at top with one or more branches or curved arms, 9, g, which when the lamp is burning, serve not only to spread the flame, but particularly to gather heat therefrom and conduct it into the shank of the spur, by which it is conveyed into the body of the wick so as to aid in vaporizing the fluid or material taken up in and by the wick. This spur transfers heat into the middle part of the wick, while the external surface of the wick removes heat from the The efficiency of the spur will at once be apparent by removing it from the burner tube while the lamp is in operation or inflamed. A depression of the flame will immediately follow, and in most cases the lamp will shortly 16,398, dated January 13, 1857.

go out, as by the gas burner, there will not be heat enough conducted into the wick to vaporize the contents thereof.

hen the gas burner and the spur are placed with relation to the wick tube and wick as shown in Figs. 1, and 2, and flame is applied to the burner, the fluid of the wick immediately becomes inflamed, and issues with considerable velocity from the slit of the burner, and takes fire so as to emit a brilliant light, far more eifulgent, than can be produced from the wick tube fling wick without the appendages as speci- I do not claim combining with a burner, a piece of metal to extend down into the body of a lamp for the purpose of fluidizing the combustible matter therein; nor do I claim combining with the wick of a burner, a metallic tube to extend around said wick and down into the burner tube, and to be capped with a button for spreading the flame, the heat of said button and the tube extending immediately around the wick serving to vaporize the fluid within the wick, but

lVhat I claim is So applying to the gas burner, 21 tapering spur, that it may extend down into the body of the wick and serve to conduct heat into the interior of the wick while the eX- ternal sides of the wick are heated by the burner and wicktube as specified; and when such spur is used I claim making it with one or more branches at top as shown and described.

In testimony whereof I have hereunto set my signature this twenty first day of November A D 1856.

7 DAVID F. RANDALL.

Witnesses:

Geo. M. SrEARNs, M. WV. CHAPIN. 

